Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 547 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
2. 2.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) current (d) how much a part resists
3. 3.True or false: the voltmeter is joined across a part. (a) False (b) True
4. 4.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
5. 5.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
6. 6.True or false: power is measured in watts (W). (a) False (b) True
7. 7.True or false: the voltmeter measures current. (a) False (b) True
8. 8.True or false: the ammeter is joined across a part. (a) False (b) True
9. 9.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
10. 10.📏 How many watts (W) is 3.3 kW?
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
12. 12.True or false: how much a part resists is measured in volts (V). (a) False (b) True
13. 13.📏 How many kilowatts (kW) is 350 W? =
14. 14.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
15. 15.True or false: the flow of charge is measured in watts (W). (a) True (b) False
16. 16.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1000 (d) 1024
17. 17.📏 How many milliamperes (mA) is 2.2 A?
18. 18.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
19. 19.Which of these is measured in watts (W)? (a) how much a part resists (b) voltage (c) power (d) current
20. 20.📏 How many kilowatts (kW) is 900 W? =
21. 21.True or false: voltage is measured in ohms (Ω). (a) True (b) False
22. 22.📏 How many watts (W) is 0.9 kW?
23. 23.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
24. 24.📏 How many ohms (Ω) is 7.1 kΩ?
25. 25.True or false: the ammeter is joined in series. (a) False (b) True
26. 26.True or false: the voltmeter measures voltage. (a) True (b) False
27. 27.📏 How many watts (W) is 0.3 kW?
28. 28.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
29. 29.📏 How many kilowatts (kW) is 4150 W? =
30. 30.📏 How many kilowatts (kW) is 650 W? =
31. 31.📏 How many amperes (A) is 1040 mA? =
32. 32.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
33. 33.📏 How many watts (W) is 0.4 kW?
34. 34.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) current (c) the flow of charge (d) resistance
35. 35.True or false: the voltmeter is joined in series. (a) True (b) False
36. 36.📏 How many watts (W) is 2.2 kW?
37. 37.📏 How many ohms (Ω) is 2.9 kΩ?
38. 38.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
39. 39.📏 How many ohms (Ω) is 9.9 kΩ?
40. 40.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) current (d) power

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids